Plant Tissues · Botany

The 'Heartwood' of a tree differs from 'Sapwood' because heartwood is:

  1. Actively conducting water
  2. Found in the outer, still-growing layers of the trunk close to the bark
  3. Filled with tannins and resins and is non-functional in transport
  4. Composed of living parenchyma cells
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Correct answer: Filled with tannins and resins and is non-functional in transport

Heartwood is the central, older wood of a tree. It is darker and more durable due to the accumulation of organic compounds like resins and tannins, and it no longer conducts water.

Difficulty: Medium Question 33 of 40

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